1 /*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <stdio.h>
18 #include <stdlib.h>
19 #include <string.h>
20
21 #include <sysdeps.h>
22
23 #define TRACE_TAG TRACE_TRANSPORT
24 #include "adb.h"
25
26 #if ADB_HOST
27 #include "usb_vendors.h"
28 #endif
29
30 /* XXX better define? */
31 #ifdef __ppc__
32 #define H4(x) (((x) & 0xFF000000) >> 24) | (((x) & 0x00FF0000) >> 8) | (((x) & 0x0000FF00) << 8) | (((x) & 0x000000FF) << 24)
fix_endians(apacket * p)33 static inline void fix_endians(apacket *p)
34 {
35 p->msg.command = H4(p->msg.command);
36 p->msg.arg0 = H4(p->msg.arg0);
37 p->msg.arg1 = H4(p->msg.arg1);
38 p->msg.data_length = H4(p->msg.data_length);
39 p->msg.data_check = H4(p->msg.data_check);
40 p->msg.magic = H4(p->msg.magic);
41 }
host_to_le32(unsigned n)42 unsigned host_to_le32(unsigned n)
43 {
44 return H4(n);
45 }
46 #else
47 #define fix_endians(p) do {} while (0)
host_to_le32(unsigned n)48 unsigned host_to_le32(unsigned n)
49 {
50 return n;
51 }
52 #endif
53
remote_read(apacket * p,atransport * t)54 static int remote_read(apacket *p, atransport *t)
55 {
56 if(usb_read(t->usb, &p->msg, sizeof(amessage))){
57 D("remote usb: read terminated (message)\n");
58 return -1;
59 }
60
61 fix_endians(p);
62
63 if(check_header(p)) {
64 D("remote usb: check_header failed\n");
65 return -1;
66 }
67
68 if(p->msg.data_length) {
69 if(usb_read(t->usb, p->data, p->msg.data_length)){
70 D("remote usb: terminated (data)\n");
71 return -1;
72 }
73 }
74
75 if(check_data(p)) {
76 D("remote usb: check_data failed\n");
77 return -1;
78 }
79
80 return 0;
81 }
82
remote_write(apacket * p,atransport * t)83 static int remote_write(apacket *p, atransport *t)
84 {
85 unsigned size = p->msg.data_length;
86
87 fix_endians(p);
88
89 if(usb_write(t->usb, &p->msg, sizeof(amessage))) {
90 D("remote usb: 1 - write terminated\n");
91 return -1;
92 }
93 if(p->msg.data_length == 0) return 0;
94 if(usb_write(t->usb, &p->data, size)) {
95 D("remote usb: 2 - write terminated\n");
96 return -1;
97 }
98
99 return 0;
100 }
101
remote_close(atransport * t)102 static void remote_close(atransport *t)
103 {
104 usb_close(t->usb);
105 t->usb = 0;
106 }
107
remote_kick(atransport * t)108 static void remote_kick(atransport *t)
109 {
110 usb_kick(t->usb);
111 }
112
init_usb_transport(atransport * t,usb_handle * h)113 void init_usb_transport(atransport *t, usb_handle *h)
114 {
115 D("transport: usb\n");
116 t->close = remote_close;
117 t->kick = remote_kick;
118 t->read_from_remote = remote_read;
119 t->write_to_remote = remote_write;
120 t->sync_token = 1;
121 t->connection_state = CS_OFFLINE;
122 t->type = kTransportUsb;
123 t->usb = h;
124
125 #if ADB_HOST
126 HOST = 1;
127 #else
128 HOST = 0;
129 #endif
130 }
131
132 #if ADB_HOST
is_adb_interface(int vid,int pid,int usb_class,int usb_subclass,int usb_protocol)133 int is_adb_interface(int vid, int pid, int usb_class, int usb_subclass, int usb_protocol)
134 {
135 unsigned i;
136 for (i = 0; i < vendorIdCount; i++) {
137 if (vid == vendorIds[i]) {
138 if (usb_class == ADB_CLASS && usb_subclass == ADB_SUBCLASS &&
139 usb_protocol == ADB_PROTOCOL) {
140 return 1;
141 }
142
143 return 0;
144 }
145 }
146
147 return 0;
148 }
149 #endif
150